Temple del acero SAE 1045 enfriado en sustancias no convencionales
Fecha
2018
Autores
Guillén Morales, Yasdiel
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ISSN de la revista
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Editor
Universidad Central ‘‘Marta Abreu’’ de Las Villas. Facultad de Ingeniería Mecánica e Industrial. Departamento de Ingeniería Mecánica
Resumen
En el presente trabajo se realiza el temple a probetas de acero AISI 1045
enfriándolas en sustancias no convencionales. Se realizaron tres grupos de cinco
probetas cada uno, el primer grupo se enfría en aceite vegetal usado, el segundo
en aceite mineral 15W40 después de ser utilizado en el motor de un automóvil y el
tercer grupo se enfría en agua para tomarlo como patrón de comparación.
Primeramente, se realiza el análisis químico de las probetas y se verifica que su
composición se corresponde con el acero 1045. Se mide la dureza a estas
probetas sin tratamiento y también se corresponde con lo estipulado en la
literatura para este tipo de acero laminado en frío. Se realiza el temple tomando un
régimen con una temperatura de 840 ºC y una permanencia de 30 minutos.
Posteriormente cada grupo de probetas se enfría en la sustancia correspondiente.
Después se realiza el análisis estructural de los diferentes grupos de probetas y se
mide la dureza en las mismas. Finalmente se realiza el ensayo de desgaste
abrasivo utilizando el método de arena seca- rueda de caucho establecido por la
norma ASTM G 65.
In the present work, tempering of AISI 1045 steel specimens is carried out by cooling them in unconventional substances. Three groups of five specimens each were made, the first group was cooled in used vegetable oil, the second in 15W40 mineral oil after being used in the engine of a car and the third group was cooled in water to take it as a comparison pattern. Firstly, the chemical analysis of the specimens is carried out and it is verified that their composition corresponds to the steel 1045. The hardness is measured to these specimens without treatment and also corresponds to what is stipulated in the literature for this type of cold rolled steel. The tempering is carried out taking a regime with a temperature of 840 ° C and a permanence of 30 minutes. Subsequently, each group of test pieces is cooled in the corresponding substance. Then the structural analysis of the different groups of test pieces is made and the hardness is measured in them. Finally, the abrasive wear test is carried out using the dry sand-rubber wheel method established by the ASTM G 65 standard.
In the present work, tempering of AISI 1045 steel specimens is carried out by cooling them in unconventional substances. Three groups of five specimens each were made, the first group was cooled in used vegetable oil, the second in 15W40 mineral oil after being used in the engine of a car and the third group was cooled in water to take it as a comparison pattern. Firstly, the chemical analysis of the specimens is carried out and it is verified that their composition corresponds to the steel 1045. The hardness is measured to these specimens without treatment and also corresponds to what is stipulated in the literature for this type of cold rolled steel. The tempering is carried out taking a regime with a temperature of 840 ° C and a permanence of 30 minutes. Subsequently, each group of test pieces is cooled in the corresponding substance. Then the structural analysis of the different groups of test pieces is made and the hardness is measured in them. Finally, the abrasive wear test is carried out using the dry sand-rubber wheel method established by the ASTM G 65 standard.
Descripción
Palabras clave
Acero AISI 1045, Tratamiento Térmico, Clasificación del Acero